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Abstract:	Die DB Netz AG hat das erste Brückenbauprojekt in Verbundbauweise mit externer Bewehrung auf der Strecke Bingen-Saarbrücken erstellt und erste Erfahrungen gesammelt. Die neuartige Bauweise sieht einen Überbau im Prinzip der direkten Schienenbefestigung vor. Die Tragstruktur ist ein Querschnitt mit externer Bewehrung aus Walzträgern, die durch Verbunddübel mit dem Fertigteil schubfest verbunden ist. Nur eine Wochenendsperrpause stand bei diesem Pilotprojekt zur Verfügung, um die 140 Jahre alten Stahltrogbrücken zu ersetzen. Gleichzeitig wurden die Auflagerbänke der Pfeiler- und Widerlager erneuert. Seit Ende Oktober 2011 rollt der Verkehr über die beiden neuen Überbauten mit je 12,75 m Spannweite. Report on the railway overpass Simmerbach, Germany - Pilot project in VFT-Rail construction method with external reinforcement. The German Railway Company DB Netz AG put the first bridge structure using a composite structure with external reinforcement into operation and is gaining experience on the railway link Bingen-Saarbrücken. The new construction method implements a superstructure based on the non-ballast slab-track system. The structure contains a cross-section with external reinforcement manufactured out of rolled sections which are fixed to the precasted element by composite dowels. The close-off interval of one weekend was available for that project to replace the 140 years old trough bridges out of steel. The pier head and the support part of the abutments were renewed contemporaneously. The two innovative superstructures with a span of 12,75 m each have been in service since end of October 2011.
Source:	Stahlbau 81 (2012), No. 2
Page/s:	100-107
Language of Publication:	German

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